Re: [office] Single ODF 1.2 metadata proposal - Svante Schubert - org.oasis-open.lists.office

17 messages in org.oasis-open.lists.officeRe: [office] Single ODF 1.2 metadata ...

From	Sent On	Attachments
Svante Schubert	Dec 10, 2008 7:34 am
Svante Schubert	Dec 10, 2008 1:07 pm
Svante Schubert	Dec 12, 2008 8:28 am
Dennis E. Hamilton	Dec 15, 2008 12:12 am
Svante Schubert	Dec 15, 2008 4:18 am
Dennis E. Hamilton	Dec 23, 2008 3:56 pm
Svante Schubert	Dec 24, 2008 1:13 pm
Dennis E. Hamilton	Dec 24, 2008 8:15 pm
Svante Schubert	Jan 7, 2009 2:23 pm
Duane Nickull	Jan 7, 2009 3:55 pm
Svante Schubert	Jan 7, 2009 7:30 pm
Svante Schubert	Jan 7, 2009 7:45 pm
Svante Schubert	Jan 8, 2009 10:15 am
Dennis E. Hamilton	Jan 11, 2009 11:50 am
Svante Schubert	Jan 11, 2009 1:04 pm
Dennis E. Hamilton	Jan 11, 2009 2:30 pm
Dennis E. Hamilton	Jan 11, 2009 3:18 pm

Subject:	Re: [office] Single ODF 1.2 metadata proposal
From:	Svante Schubert (Svan...@Sun.COM)
Date:	Dec 12, 2008 8:28:05 am
List:	org.oasis-open.lists.office

Dear TC members,

from the feedback of my colleagues, I did the following minor fixes to the metadata proposal and uploaded it to:

http://www.oasis-open.org/committees/download.php/30371/08-12-12-ODF-Metadata-Change-Request.odt

1) As only relative URLs should be used to refer to inner package resources within RDF/XML, the OWL properties 'pkg:idref', 'pkg:path' and 'pkg:hasPart' (the pkg:hasPart to express the relationship of an xml file and xml element with ID) become redundant. In addition the wording of the relative URLs for inner package references had been improved.

2) As stated previously GRDDL will extract the RDFa from content.xml and styles.xml to RDF/XML and map the OpenDocument XML of the meta.xml to RDF/XML via XSLT. I was asked to add explicitly in the specification that the common meta.xml elements should be mapped to RDF by an ODF application in a defined way:

"All OpenDocument elements of the meta.xml /should/ be mapped to RDF. The algorithm is provided by the OASIS hosted XSL stylesheet. [Editor's Note: Add link] "

The stylesheet is an implementation detail, but a mapping from meta.xml to RDF could be done as the following:

meta.xml: <office:document-meta xmlns:office="....> <office:meta> <meta:print-date>2004-08-20T07:38:27</meta:print-date> <meta:user-defined meta:name="achieved at">26.08.2004</meta:user-defined> <meta:user-defined meta:name="working hours">5</meta:user-defined> <meta:document-statistic meta:table-count="5" meta:image-count="3" />

RDF (N3): <DOCUMENT_IRI> meta:print-date "2004-08-20T07:38:27" . <DOCUMENT_IRI> meta:document-statistic [meta:table-count "5"; meta:image-count="3"] <DOCUMENT_IRI> meta:user-defined [meta:name "working hours"; meta:value "5"] . <DOCUMENT_IRI> meta:user-defined [meta:name "working hours"; meta:value "26.08.2004"] .

Where <DOCUMENT_IRI> is the IRI to the document of the meta.xml (document root). E.g. the <DOCUMENT_IRI> for the meta.xml of the root document of the uploaded proposal would be:

http://www.oasis-open.org/committees/download.php/30371/08-12-12-ODF-Metadata-Change-Request.odt/

Regards, Svante

Dear TC members,

As the previous approved metadata proposal was yet not integrated, I have updated and uploaded a new draft based on the prior with change tracking enabled [1] and will assist Patrick in its integration after an agreement. For now I would like to set this metadata proposal on the agenda of the next TC call.

If you have any questions regarding the proposal, please send them to me prior to the call. I believe the overall proposal is not controversial and the discussion will take us less time than for a single proposal.

Kind regards, Svante

[1] http://www.oasis-open.org/apps/org/workgroup/office-metadata/download.php/30347/08-12-10-ODF-Metadata-Change-Request.odt

Dear TC members,

from my feedback of the W3C Semantic Web Interest group I would like to combine the previous three existing proposal parts to a single metadata proposal, consisting of three parts:

Adaption of W3C RDFa standard <http://wiki.oasis-open.org/office/Change_Proposal_for_ODF_1.2_Metadata_-_Adaption_of_W3C_RDFa_standard> Previously RDFa was not a W3C Recommendation and could not be reused in our spec, now we are able to adapt the official standard.

Usage of W3C GRDDL standard <http://wiki.oasis-open.org/office/Change_Proposal_for_ODF_1.2_Metadata_-_Usage_of_W3C_GRDDL_standard> Meant for non ODF applications to extract the RDF graph from our content.xml, styles.xml and meta.xml streams via a referenced XSL stylesheet. Similar adapted by XHTML files using RDFa standard. The location of the XSL stylesheet is resolved via the URL of the root namespace (ie. XHTML use case) or via a GRDDL attribute in the root element (i.e. ODF use case as namespace is an URN and no URL). Therefore the only effort for ODF applications is a new root element attribute, the effect enormous. (After proposal acceptance I would create the XSL stylesheets and place it on an OASIS server).

Adaption of RDF mapping to relative URLs <http://wiki.oasis-open.org/office/Change_Proposal_for_ODF_1.2_Metadata_-_Adaption_of_RDF_mapping_to_relative_URLs> Currently in the new RDF mapping file (manifest.rdf) an arbitrary URN is being invented for every ODF element described in the RDF graph. But this creates troublesome URL alias. Instead the standard will require that a resource (ODF element) will be mapped directly to its relative URL.

Currently I am finalizing the overall proposal. In case I will be ready this evening, I would set it on the agenda of the next TC call.

PS: The previous announced ODF 1.2 proposal of fragment identifier for URLs to ODF mime types is being withdrawn by myself, due to the amount of proposals that have been requested to be considered for ODF 1.2.

Regards, Svante

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